LGE_DB_Models exc. file:
AI Column: Cohesion
Relative Comment Box states: [color="RoyalBlue"]A value between 0 and 100, used to represent the model "cohesion", i.e. its organizational strength. When a model has a 0 cohesion, it will retreat from or not engage in combat[/color].
Beeing that true, lowering to zero all units cohesion, (by an event-command) could work to avoid engagemnts during an armistice!
Then, I suppose AI to be so smart to move Zero cohesion units at any friendly controlled region, possibly with depot, city depots, fortresses within.